The starter relay or the internal starter relay solenoid contact is closed either by 12 volts still applied to the relay or starter or the contacts have welded themselves together. Welded together sounds good if the starter is shorted and that would cause the cables to overheat also.
If it's turning over slowly but eventually starts, there is more than likely a problem with the battery. It may be drained down or discharged. You can perform a battery test on it to ensure that there is sufficient voltage and Cold Cranking Amps (CCA) to start the vehicle. It also would be good measure to perform a charging system test to be sure that the alternator is charging enough. If it was a fairly new battery, you may have to do a parasitic draw test to be sure that something isn't sucking juice out of the battery when it shouldn't be. Hope this helps.
Battery may be on way out
Either the gear on the end of the distributor shaft is chewed off or the gear that drives it is . Possibly broken cam.
Alternator can be discounted for starting problem; it charges the battery when the engine is running it has nothing to do with starting the car. If the engine is not turning over (cranking) when you try to start it, either the igniton switch, wiring or starter motor are at fault. Also check the thick cable from battery negative/body to the engine block. NOTE if the car is automatic the park/neutral switch could be faulty. If the car is alarmed it could be an immobilizer fault. Difficult to know from your question but if engine starts with charged battery, check WITH ENGINE RUNNING for 14 volts approx across battery terminals. If volts less than 12, swap out the alternator
A single clonk type noise is a good sign. If you have a rapid clicking with dimming of the lights you have a bad battery. Make sure you have proper voltage/cranking amps before you make a decision.
If the engine is "cranking" then it is "turning over". Please be more specific.
biggest problem with ford starters burning out is caused by a bad battery and prolonged engine turning over if hard to start. if starter has been replaced, your battery may not have correct cranking amps. bare in mind that a hot engine actually takes more cranking amps than a cold engine to start.
Cranking the car or starting the car in cold weather can wear out a car battery. You can also wear out the battery by turning the starter over without fuel in the tank.
what are you Cold Cranking Amps on your battery? perhaps your battery is not strong enough, if that's not the case something with the battery wiring i suppose as long as your starting is turning it should be a battery issue.
Weak battery? Loose or corroded battery cables? Weak starter?
generally , cranking an engine is done with igniton where turning is done by hand with the ignition off so as it will not start
Cranking in a Toyota Corolla refers to the process of turning the ignition key or pressing the start button to engage the starter motor, which powers the engine's flywheel to initiate combustion. If the engine starts successfully, it indicates that the ignition system, fuel system, and battery are functioning properly. If cranking occurs without the engine starting, it may indicate issues such as a weak battery, fuel delivery problems, or ignition system failures. Efficient cranking is essential for reliable vehicle operation.
When turning the ignition key, a flash of dashboard lights followed by them going dead usually indicates a weak or dead battery. The initial power surge activates the lights, but if the battery cannot sustain the load, the voltage drops, causing the lights to go out. Additionally, a faulty ignition switch, corroded battery terminals, or a malfunctioning starter can prevent the engine from cranking, resulting in no sound. It’s essential to check the battery and connections to diagnose the issue.
If your vechicle does that it means that your battery was dead and after a while of cranking it sometimes it gets charge and starts
Check there is spark from the coil. Pull a plug and set it close to a ground and see if there is spark when cranking. If not, then coil or ignition module. If spark, then check fuel pressure at rail. Check fuel pump is coming on when turning key to on. Should hear it.
Why does any car crank but not turn over. Plugs, timing, battery, fuel, whatever. Start where the ignition is. If that's alright, see if it's getting gas. You should smell gasoline while you pump the throttle.
With your limited info there could be many reasons but first have you tested the cold cranking amps on the battery? The charging system may be fine but if the battery is going it could cause the problem your describing.